Bag-tying machine.



A. M. BATES.

BAG TYING MACHINE.

I APPLICATION FILED MMI. 15,1912.

l a l 5 52, www Aug. SI, i915.

2 SHEETS-SHEET l.

' A. M. BTES.

BAG "lYlNG MACHINE.

APPucATloN man ma. l, i912.

1,?51 52, Pmmd Aug. 3L im.

" which beure n (me enf? :meinst i "1* To all whom may concern f Be it known ithat citizen o'f the Y Chicago, in the con lliiiois, have im useful mproveiiien in chime of which the meg invention em'e-f bag @ving machines mi; abemt the neck of t is illu :ti1"d;.e1 i? Form in the eccome-,nj ill-*f Figure l is @"pin if" along the' xine Q-Q o tion Non@ he line 3-3 plan View showing' the 1i "ir o the Wim ie twists@ tailed 'View of 'Nie Wire bie:

View of n mndiiem Fig. El a Si-.e eevz L' shown ,in Fig. 6; Fig'. 8 a Dien View m of Suid mc-iication en a zirge' scale, pares binren www; 9 :i Seeiozi the une of Fil. l

ffl in :1 sm

@el mi the upper i?, en :eine the lugs comim shift n. xe myriam' bnr and 'te mei B is deemi-cmmi. Surface the Pinie A3 an spiral bth i'enefi screw Tori in :i tiii'eefle bore in @he ineiffe @if the bess. The mi'e'r m9, @if the io is mevie W' head 52 1115.3; in ioei'imi bv a Screw :me the rmi is si'uimmfied by the Siiai spring xq? boef; nnfi the Othev ngsii'neib the ien The Spring tends ie draw She swim1 m u keep it in the poasmi. neeed im 1 t ooves U Widening;

;A 1. i the i @imm 'rief' th greci/ie A 'ams .my im f' supported v1., e germi ad .m 'is 'ahum m" may be, p uw@ eiimvi in F i.

s n SYmo'i oezi'e as esiyed 'from which i'iie Wire G hroulgh the guie-eye @f2 "he imnc'ie. Theme the Wire passes slots G3 G in he iews G5 G6011 ai hea@ @l respectively. pm'aiie one t0 the other but ai iotfition of the mi he m F .ries like Tief. *be *nwo jews slide in ammi piane corveo? the Jaw Gf This mo'vemen' causes the wire to be sheared ofi' by the two iaws as they slide one upon the other and it is held against withdrawal from the handle by the clamp G7 made up of the locking ball Gr8 held in the spring G against the cam sur- `aces G10 andthe wire G1.

When the tie is to be used without the upset ends, it is held against movement in the head by the pins H in opposition to the inclined cam surface H1 and wedged bei tween this surface and the wire by the spring H2. .These pins have the conical heads H3 in opposition ,to the inclined wall of the opening H4 whereby the wire m-ay be forced downwardly into the slot H5 in a direction parallel with the axis of the pins and a forward movement of or tension on the wire will tend to wedge the pins against the wire and thus hold it against any displacement. This wedging action, however, will not resist an upward movement of the wire and, therefore, the finished tie may be freed from the head by forcing the head slightly inwardly to free the tension on the pins and tipping the head with respect to the wire tie.

The crossing of the two ends of the tie at the point where the twist is to be made is in the axis of the screw rod and this greatly .reduces the effort involved in twisting. The

heading up of the ends of the wire may be done in any desired manner, but I show no apparatus for that purpose. The various advantages and purposes of the invention will be readily understood from the description and drawings.

The arrangement whereby the ends of the wire are crossed before the twisting action takes place locates the point at which the twisting starts, and 'in the arrangement shown this swisting starts first at a point immediately adjacent the twisting head and progresses Atoward the bag. Therefore, the twisting may be continued as longas desired and its sole function is to cause' the twisted area to extend toward the bag and constrict it and, therefore, there is no limit placed upon the number of turns which may be made. lt will be understood that this is important, in view of the fact that when the wires are twisted from a position of parallelism the cross isfmade at some point between the head andthe bag and the twist extends both ways and is limited at one end by the rigid head.

It will be understood that my illustrations are more or less diagrammatic, although they show an operative machine, but they are intended to suggest a general form of structure rather than to set forth xed details. A. very considerable departure as to size, proportion and arrangement of parts can be made without departing from the spirit of my invention.

The use and operation of my invention are as foli'ows z-Referring first to the xed tying machine, the arrangement is such that the machine may be moved back and forth along an extended platform so as to be brought to any desired position and shifted from time to time to accommodate itself to other conditions. The tie wire, assuming that it is a severed piece with upset ends is carried around the crimped end of the 'bag and the and thus be held in its slot preliminary to the twisting without the necessity of having the ends of the wires upset. Moreover, this arrangement permits a flexible or varying length of wire, as only so much wire as is necessary is placed around the object to be tied and this might be a variable amount. In such case the wire must be severed by the cutter. Of course, the wire is vin this event fed from any desired source and l have not shown the means for mounting the spool which contains it. bviously this arrangement for supplying the wire and clamp or clamps in the twisted head and the cutter could either or all of them be applied to the device as shown in Fig. l as well as the device shown in Fig. 6.

The manipulation of the device of Fig. 1 is as follows z--iVhen a bag is to be tied the neck of the bag is first roughly surrounded by the bag tie in such manner that the free ends of the tie cross on the side of the neck adjacent the twisting device. The opposed free ends are then dropped into thepockets in the twisting head and thence into the grooves therein. The operator then seizes lthe bag both above and below the point at which it is in Contact with the wire tie andy pulls out thus drawing thespiral grooved rod through the lug on the carriage. The spiral grooves on the lug and on the carriage cause the rod to twist carrying with it the wire tie. The twisting starts at the point at which the free ends of the wire tie intersect and comparatively little force is required to twist the wire since the First turn, which is of course the most difficult one, is made before any tension is placed upon the wire. The heads on the free ends of the tie prevent the wire from drawing through the twisting head. 'When the wire has been twisted the operator releases the pull on the bag, disengaging the wire tie and the spring draws the twisting head back into its original position. The manipulation of the device as shownk in Fig. 6 is substantially the achim, comprising ncung nependen; of s wr receiving :m52 hn and im: prevea 2,125 o?? L theta 5. A. bag *Lying machina, comprising; sotd 'wstnff head, means ndung the Walls o1' the sions fm* receiving ani holding tha ends the tie, means for the le the bag, and means 

